计算机的最基本用途之一就是执行数学运算，作为一门计算机语言，Java也提供了一套丰富的运算符来操纵变量。
Types of operators
Including: arithmetic operators, relational operators, logical operators, etc.
One, arithmetic operators.
One of the most basic uses of computers is to perform mathematical operations. As a computer language, Java also provides a rich set of operators to manipulate variables.
Assuming a=10, b=5.
Example display
package test01;
public class test11 {
public static void main(String[] args) {
int a=10;
int b=5;
System.out.println("a+b="+(a+b));
System.out.println("a-b="+(a-b));
System.out.println("a*b="+(a*b));
System.out.println("a/b="+(a/b));
System.out.println("a%b="+(a%b));
System.out.println("a++ ="+(a++));
System.out.println("a-- ="+(a--));
System.out.println("--a ="+(--a));
System.out.println("++a ="+(++a));
}
}
The results of the code operation are as follows:
Note: The increment and decrement operator
++ is calculated first and then assigned
++ is assigned first and then calculated
(similarly, the operation steps are the same as ++)
Second, the relational operators The
relational operators are as follows:
Example display:
package test01;
public class test12 {
public static void main(String[] args) {
int a = 10;
int b = 5;
System.out.println("a == b = " + (a == b) );
System.out.println("a != b = " + (a != b) );
System.out.println("a > b = " + (a > b) );
System.out.println("a < b = " + (a < b) );
System.out.println("b >= a = " + (b >= a) );
System.out.println("b <= a = " + (b <= a) );
}
}
The code results are as follows:
Third, logical operators The
logical operators are as follows:
Example display:
package test01;
public class test06 {
public static void main(String[] args) {
int a = 8;
int b = 10;
boolean bool = a<10 && b<9;
boolean boole = a<10 || b<9;
System.out.println(bool);
System.out.println(boole);
}
}
The results are as follows:
